num = [1, 2, 3, 4, 5, 6, 5, 5]
num.remove(5)
print(num)
del num[1]  # 删除索引元素，不返回任何职
print(num)
print(num.pop())
print(num)

switch = \
{
    1: "apple",
    2: "dog",
    3: "pig"
}
mm = int(input())
print(switch.get(mm))